//
// 引入 SDK
const crawlab = require('crawlab-sdk')

const axios = require('axios')
const cheerio = require('cheerio')
const schoolName = '武汉大学'
const baseURL = 'https://news.whu.edu.cn/'
// 这是一个结果，需要为 object 类型
// const result = {name: 'crawlab'};

;(async () => {
  crawPage(`${baseURL}/wdyw.htm`, rule)
  // 调用保存结果方法
  // await crawlab.saveItem(result);

  // // 关闭数据库连接，否则程序不会结束
})()

async function crawPage(url, func) {
  const { data: html } = await axios(url)
  const $ = cheerio.load(html)
  func && func($)
}

async function rule($) {
  const res = $('.kuang7 .list li')
  for (let i = 0; i < res.length; i++) {
    const item = $(res[i])
    if (item.hasClass('listtitle')) {
      continue
    }
    const href = baseURL + item.find('a').attr('href')
    const title = item.find('a').text().trim()
    const date = item.find('.infodate').text().trim()
    await crawlab.saveItem({
      time: date,
      url: href,
      title,
      schoolName
    })
    // console.log(item.html())
  }
  const next = $('a.Next')
    .filter(function (i, el) {
      return $(this).text() === '下页'
    })
    .attr('href')
  // const next = $('.Next').attr('href')
  if (next && next !== 'javascript:void(0);') {
    crawPage(`${baseURL}${next}`, rule)
  } else {
    await crawlab.close()
  }
}
